Slice the watermelon in half lengthwise.
Finely dice the broccoli, carrots, and red bell pepper into small pieces for the best texture and even distribution.
Allow the cream cheese to soften at room temperature.
In a medium bowl, combine the cream cheese, mayonnaise, garlic powder, dill, salt, and black pepper.
Mix until smooth and creamy.
Warm the tortillas in the microwave for 15–20 seconds to make them easier to roll.
Spread the cream cheese mixture evenly over each tortilla, covering the entire surface.
Sprinkle the diced vegetables evenly over the tortillas.
Add the shredded cheddar cheese and sliced green onions.
Roll each tortilla tightly from one edge to the other.
Secure with toothpicks if needed.
Place the rolled tortillas in the freezer for 20 minutes or refrigerate overnight for easier slicing.
Remove toothpicks and slice into pinwheels.
Arrange and serve your Fresh Vegetable Tortilla Roll Ups chilled.